So I went to the dealer and they fixed the brake squeal by cleaning from rotors and pads from brake dust and tire shine. It worked for 2 days but now its back again -_- whats the next step

 

We already told you last week what to do.

Brake harder. Nothing you can do. It's a sports car. I've driven over 29,000 miles. Never have I heard my brakes on the street.

 

If you won't drive your car hard, which results in hard breaking the squeal will be ever present. You have three choices, drive harder, get used to it or buy ear plugs.

 

Wonder if every 911 driver who does not drive their car hard has squeaking brakes. If so, then Beverly Hills must be deafening I wonder if some of that tire shine stuff has soaked into the pad, or is causing the pad material to glaze over. Just one wheel doing it? If so maybe replace the pads on that wheel.

 

I doubt that your OEM pads can glaze over due to improper bedding. They should bed after a couple of hundred miles of street driving. I don't think Porsche bed's the pads to the rotor before delivery, but I may be wrong. Change the pads, it may help. FWIW, when I took delivery on my 2016, I had really bad squeal until the first track session. When I changed out pads on my 2014 using OEM, I did not have the problem. Possibly something changed with the pads being used on new cars. Just my 2c.

 

^guys have been complaining about brake noise sine the 2012.5 991s. Nuttin new.

 

Buy a Lexus

 

I have never in 2 yrs heard squealing from my brakes and I don't have a chance to " drive it hard". That's just silly to suggest that. Brakes should not squeal unless there was improper install on pads or rotor. Also, and this is old school, copper paste on the back of the pads.

 

Are your rotors still flat or do they have ruts worn into them? I replaced mine at 65k and the ruts were pretty deep, the squealing had gotten pretty bad.

 

No, it isn't silly. You don't have to "drive it hard" all the time. You just need to do a few hard stops from high speed.

I have had few sports cars whose brakes didn't squeal at first, and none at all whose brakes didn't stop squealing after a few inverse Italian tune-ups.

 

Just what my SA said. Do a few hard stops from 60-40 on the highway and your squeals will go away.

 

I recommend these cleaning steps during car wash. They worked wonders for limiting brake noise:
1. Spray rotors with hyde serum (anti rust chemical)
2. Spray around the wheel with wheel cleaner
3. Rinse them
4. Use blower to dry them
5. Spray hyde serum on paper towel and wipe the rotors again until they kind of shine
6. Wax the wheel
7. Wait for a few hours
8. Spray armorall wheel protectant around the wheel (few coats per wheel). Don't worry if the coats get into rotors or pads. If you drive in the rain, spray the wheels again during sunny day as the coats are water based.

 

Related question PF. I have Hyde's but have not figured out a way to reliably apply to the back side of the rotor. How do you do it?

 

I had true brake squeal this week when I picked up a stone between the rotor and the dust shield. Holy crap you would have swore I was dragging a few shopping carts behind me. The noise was terrifying.

I'll take my little brake squeak to a stop any day.

 

Happened to me last year. Truly thought I lost the motor.